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authorMarcel Ziswiler <marcel.ziswiler@toradex.com>2018-04-17 14:59:10 +0200
committerMarcel Ziswiler <marcel.ziswiler@toradex.com>2018-12-24 01:27:32 +0100
commitff7adfc062bc1a6fa6ae99ecbff2db6276ae1eab (patch)
treecd474987ba8515514f644f11df2a2504b5dafeee
parent7f785ef455acb05d283eefec8b5c4308236c3050 (diff)
Revert "PCI: Do not allocate more buses than available in parent"
This reverts commit 9a4bf05126f42c2632729ab0da503021d74ed454. With this commit the PCIe enumaration fails. A follow up commit further addresses the issue. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Acked-by: Max Krummenacher <max.krummenacher@toradex.com>
-rw-r--r--drivers/pci/probe.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 16611cf3aba4..6b5cee5ae933 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -932,8 +932,7 @@ int pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, int pass)
child = pci_add_new_bus(bus, dev, max+1);
if (!child)
goto out;
- pci_bus_insert_busn_res(child, max+1,
- bus->busn_res.end);
+ pci_bus_insert_busn_res(child, max+1, 0xff);
}
max++;
buses = (buses & 0xff000000)
@@ -2141,10 +2140,6 @@ unsigned int pci_scan_child_bus(struct pci_bus *bus)
if (bus->self && bus->self->is_hotplug_bridge && pci_hotplug_bus_size) {
if (max - bus->busn_res.start < pci_hotplug_bus_size - 1)
max = bus->busn_res.start + pci_hotplug_bus_size - 1;
-
- /* Do not allocate more buses than we have room left */
- if (max > bus->busn_res.end)
- max = bus->busn_res.end;
}
/*